Instagram has updated its Windows 10 app with some new features that had previously been introduced on iOS and Android a few weeks back. One of the features is pinch to zoom, which means you can now zoom into images for whatever reason and see an even more pixellated version. Other addition is the ability to moderate comments and lastly you can now change font colors in your Stories. The update is now available to download on the Windows Store. Source
Source: http://www.gsmarena.com/instagram_updates_windows_10_app-news-20756.php